Re: (ET) ok, not the fusible link

["Elie, Larry \(L.D.\)" <lelie ford com>]

Did you check the micro-switch on the speed control?  The control is a
hard plastic that eventually wears.  The only difference between forward
and reverse is if one particular micro-switch gets engaged or not.  You
can usually bend the speed control bracket enough to make it work.

Larry Elie
 

-----Original Message-----
From: elec-trak-bounces cosmos phy tufts edu
[mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of Michael S
Briggs
Sent: Monday, July 31, 2006 9:37 PM
To: David C Robie
Cc: elec-trak cosmos phy tufts edu
Subject: Re: (ET) ok, not the fusible link



On Mon, 31 Jul 2006, David C Robie wrote:

> BE SURE that all connections under the tractor to the motor especially
> the little wires are oK.  You could've hooked something, a branch etc

I'll check 'em. Since it's working in reverse though, shouldn't that
mean 
all those connections are fine? My understanding from the schematics is 
that the forward/reverse relay reverses the direction of the field (ok, 
reverses the direction of the current that makes the field) to swap from

forward to reverse, but the same connections on the motor itself are
used. 
No? If that's the way it works, it seems like the connections at the
motor 
should be fine. I think.

>   If it twer me would check the RTN contacts  and open the kickplate,

Which are the RTN (Return to Neutral, I think?) contacts?

> put some WD better yet a good breakfree on all the big relay terminals
> then tighten em.

I assume the kickplate is the plate just in front of where you sit? :)
If 
so, I've become somewhat familiar with things down there as I've poked 
around. I've sprayed the connections with De-Oxit, but haven't loosened 
and retightened all the connections.

> A bad connection at the 3 big terminals on the armature resistor guard
on
> front would cause this too.  Breakfree em and tighten em.

Armature resistor guard? Do you mean the connections to R1 and R2 on the

"screen" above the charger?

Thanks,
Mike

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